CN107078496A - Superconducting electric power system and hyperconductive cable laying method - Google Patents
Superconducting electric power system and hyperconductive cable laying method Download PDFInfo
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- CN107078496A CN107078496A CN201580056015.2A CN201580056015A CN107078496A CN 107078496 A CN107078496 A CN 107078496A CN 201580056015 A CN201580056015 A CN 201580056015A CN 107078496 A CN107078496 A CN 107078496A
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- hyperconductive cable
- pendency
- interval
- cable
- superconducting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/34—Cable fittings for cryogenic cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/14—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by the disposition of thermal insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Superconductors And Manufacturing Methods Therefor (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The present invention relates to superconducting electric power system and hyperconductive cable laying method, with the convergent force produced by can effectively absorbing cable shrinkage when carrying out cooling down operation to hyperconductive cable, and can be to lay hyperconductive cable in the way of reducing the waste in unnecessary laying space as far as possible.
Description
Technical field
The present invention relates to a kind of superconducting electric power system and hyperconductive cable laying method, more specifically, the present invention relates to
A kind of convergent force with produced by can effectively absorbing cable shrinkage when carrying out cooling down operation to hyperconductive cable, and can
The superconducting electric power system and hyperconductive cable of hyperconductive cable are laid in the form of reducing the waste in unnecessary laying space as far as possible
Laying method.
Background technology
At a certain temperature, the resistance of superconducting wire is close to zero, therefore also has stronger transmission of electricity at lower voltages
Ability.
As that can realize the power cable that Large Copacity, high efficiency, environmental protection are transmitted electricity, ac superconducting cable allows electric current at it
Proportion shared by middle charging current is smaller, therefore the transmission distance limitation caused by charging current is less than existing cable.Therefore, have
Beneficial to long distance power transmission, for DC superconducting cable, resistance is close to 0, therefore with there's almost no long distance
The advantage declined from voltage caused by transmission of electricity.
The hyperconductive cable for possessing such superconducting wire uses the method and/or shape cooled down by refrigerants such as nitrogen
Formed into the heat-insulating method of vacuum layer and keep pole low temperature environment.Because hyperconductive cable keeps extremely low temperature using refrigerant, because
This every predetermined distance can set halfway junction box in laying is interval, and set terminal connection box, with normal temperature environment
Power system is connected.
The hyperconductive cable for constituting this superconducting electric power system generally comprises interior metal pipe and external metallization pipe.
The cooling end that liquid refrigerants is circulated can be set in the inner side for constituting the interior metal pipe of hyperconductive cable, and outside it
Portion is provided for preventing MLI (the Multi Layer Insulation of the heat transfers such as radiation：Multilayer insulation) form thermal insulation layer.
To realize vacuum heat-insulation, vacuum can be set in the outside of the thermal insulation layer, and it is empty that the vacuum possesses isolation
Between, the insulating space possesses separator, and sets external metallization pipe in the outside of the vacuum.
The interior metal pipe and external metallization pipe can be made up of metal material, for example, can be made up of aluminum etc..
General extra-high-tension cable makes wire rod occur thermal expansion when being transmitted electricity, due to conductor temp.-elevating.Thus having can
It can be distorted in pipeline and the power of fixed position is concentrated.Therefore the various environment of laying design technological development correspondence are utilized
The laying method of condition.Longer time has been crossed from the development period of hyperconductive cable, therefore has been also accumulated from laying design technology.
But for hyperconductive cable, due to the use of pole low temperature refrigerant being liquid nitrogen, therefore different from existing super-pressure
Cable, it may occur that shrinkage phenomenon.Particularly, the interior metal pipe stores liquid refrigerants, and it is therefore possible to because in the cooling
The liquid refrigerants for the extremely low temperature that portion is circulated and produce serious contraction.
On the contrary, for the external metallization pipe, radiation, convection current and biography are blocked by insulation part and vacuum
The heat transfer such as lead, thus cooling meat amount caused by liquid refrigerants and little.
Therefore, the interior metal pipe and external metallization pipe set for purposes such as the intensity for keeping hyperconductive cable is in liquid
Refrigerant is filled and occurred when circulating different degrees of contraction.
Interior metal pipe and external metallization pipe have ripple struction, therefore the hyperconductive cable when interior metal pipe shrinks respectively
Overall all to shrink, the hyperconductive cable of contraction is possible to apply convergent force to each halfway junction box or terminal connection box.
When applying convergent force to terminal box respectively when the contraction because of hyperconductive cable, with being possible to hair in the wiring of terminal box
Raw problem or accident, to prevent such case, were not arranged to solid by each halfway junction box or terminal connection box in the past
The structure of line slip is shaped but is arranged to along the direction parallel to convergent force enter within a predetermined range, or in superconduction
The roundabout space of level as defined in being formed in cable laying is interval or horizontal direction skew (offset) space, to be set by the space
Hyperconductive cable is determined along horizontal direction significantly roundabout interval, so as to tackle the contraction of hyperconductive cable.
However, setting the method for slidable terminal box to be likely to decrease the stability of system, and form offset space
Method unnecessarily unnecessarily increases the laying area of hyperconductive cable in the laying interval of hyperconductive cable, and because inside is rubbed
Wipe power and make the reduction of convergent force insufficient.
Particularly, when hyperconductive cable is laid on into underground, it is difficult to ensure sufficient offset space, and it is possible to needing
Cable of other species being set along in laying space etc. is interfered.
The content of the invention
Technical problem to be solved
The technical problems to be solved by the invention be there is provided one kind with can to hyperconductive cable carry out cooling down operation when
The form for effectively absorbing the convergent force produced by cable shrinkage lays the superconducting electric power system and hyperconductive cable of hyperconductive cable
Laying method.
Solve the scheme of technical problem
To solve the technical problem, the present invention provides a kind of superconducting electric power system, and it includes：Hyperconductive cable, including position
Skeleton in central part, the interior metal pipe being arranged on the outside of cooling flowing path and it is provided with the external metallization of vacuum in inner side
Pipe；First termination, it is connected with one end of the hyperconductive cable；And second termination, itself and the hyperconductive cable
Other end connection, wherein, the hyperconductive cable for connecting first termination and the second termination possesses and is draped down
At least one pendency it is interval.
In addition, a pendency interval, which can have in sinusoidal (SIN) function or cosine (COS) function curve, connects adjacent
One cycle of peak interval shape.
Wherein, the interval interior hyperconductive cable of overhang length P and the pendency in the cycle interval equivalent to the pendency
Maximum sag of chain be pendency height A can meet 16.0<Overhang length P/ pendency height A<27.5 scope.
Also, the diameter D of the pendency height A and hyperconductive cable can meet 1.0<Dangle height A/ diameters D<2.0
Scope.
Now, the diameter D of the overhang length P and hyperconductive cable can meet 30<Overhang length P/ diameters D<40
Scope.
Furthermore it is possible to including at least two supporting members, it is arranged on the position being separated by, to support the hyperconductive cable,
It is interval so as to form the pendency.
Wherein it is possible to set N+1 supporting members, thus continuously configure adjacent to each other it is N number of (N be more than 2 from
So count) the pendency interval.
Also, in N number of pendency is interval, the pendency height that the pendency of overhang length length is interval can be more than pendency length
The interval pendency height of the short pendency of degree.
Now, some termination in first termination and second termination is configured to
Fixed.
Furthermore it is possible to the hyperconductive cable is configured to horizontal linear so that from first termination and
It is interval that second termination to adjacent supporting member forms level.
In addition, in order to solve the technical problem, the present invention can provide a kind of laying method of hyperconductive cable, for inciting somebody to action
Hyperconductive cable is connected on two terminations of position fixation and laid, and the hyperconductive cable includes：Core, it includes being located at
The skeleton and superconducting conductor layer of the copper product of central part；Interior metal pipe, being provided with the inside of it is used to cool down the core
Cooling end；External metallization pipe, it stores the insulation part and vacuum being arranged on the outside of the interior metal pipe, described to superconduct
The laying method of cable comprises the following steps：Examination paving step, hyperconductive cable is laid to, and what is be draped down in hyperconductive cable is multiple outstanding
Hang down interval adjacent and there is overhang length and the height identical periodic function curve shape that dangles；Convergent force determination step, is determined
When the hyperconductive cable laid in the examination paving step carries out cooling down operation, skeleton, interior metal pipe and external metallization pipe
The convergent force caused by expansion or shrinkage on each comfortable cable length direction；Construction conditions determine step, it is considered to received described
The convergent force sum of the skeleton, interior metal pipe and the external metallization pipe that are determined in contracting power determination step, so that it is determined that laying is super
The horizontal direction distance in multiple pendencys interval during cable is overhang length and pendency height；And hyperconductive cable laying step
Suddenly, determine that the construction conditions determined in step lay hyperconductive cable according in the construction conditions.
Wherein, the construction conditions are determined in step, can be described super to what is determined in the convergent force determination step
The length of the skeleton of cable, the convergent force sum of interior metal pipe and external metallization pipe and the hyperconductive cable of laying with most
It is big to allow convergent force and cost conditions to be compared, so that the overhang length and the pendency highly meet 16<It is outstanding
Length of hanging down P/ pendency height A<27.5 scope.
Also, the construction conditions are determined in step, the overhang length P in the cycle interval equivalent to the pendency can be made
And the diameter D of hyperconductive cable relation meets 30<Overhang length P/ diameters D<40 scope.
Now, the construction conditions are determined in step, can make the diameter D's of the pendency height A and hyperconductive cable
Relation meets 1.0<Dangle height A/ diameters D<2.0 scope.
Also, the construction conditions determine that admissible multiple construction conditions can be determined in step.
At this point it is possible to change the overhang length and pendency height of the hyperconductive cable of examination paving, it is repeated a number of times described
Examination paving step and the convergent force determination step.
Also, the examination paving step and the convergent force determination step can be carried out by computer simulation method.
Beneficial effect
According to superconducting electric power system of the present invention and hyperconductive cable laying method, it can be carried out to hyperconductive cable
The convergent force produced by cable shrinkage is effectively absorbed during cooling down operation, terminal connection dress is put on therefore, it is possible to effectively reduce
The convergent force put etc..
In addition, according to superconducting electric power system of the present invention and hyperconductive cable laying method, effectively absorbing application
In the convergent force of terminal connection box etc., therefore, it is possible to which terminal connection device etc. is configured into fixed rather than active type, so as to
Enough improve the stability of total system.
In addition, according to superconducting electric power system of the present invention and hyperconductive cable laying method, can reduce not as far as possible
The waste of necessary laying space (skew etc.).
Brief description of the drawings
Fig. 1 shows the stereogram for peeling off the hyperconductive cable of the present invention by different level, and Fig. 2 shows superconducting shown in Fig. 1
The sectional view of cable.
Fig. 3 is for illustrating the general of the concept for the hyperconductive cable laying method for constituting superconducting electric power system of the present invention
Read figure.
Fig. 4 shows two examples of superconducting electric power system of the present invention.
Fig. 5 shows another example of superconducting electric power system of the present invention.
Fig. 6 shows the block diagram of hyperconductive cable laying method of the present invention.
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.But, the present invention is not limited to
The embodiment of this explanation, can also embody in other forms.The purpose for providing the embodiment introduced herein is, makes disclosed
Content is thoroughly and complete, and fully passs on to those skilled in the art the thought of the present invention.Identical in specification full text
Reference represents identical inscape.
Fig. 1 shows the stereogram for peeling off the hyperconductive cable of the present invention by different level, and Fig. 2 shows superconducting shown in Fig. 1
The sectional view of cable.
Illustrate the basic structure of the hyperconductive cable of the present invention.
Hyperconductive cable can include：Core 100, cooling end 200, interior metal pipe 300, insulation part 400, vacuum 500,
External metallization pipe 600 and sheath section 700, the core include：Skeleton 110；At least one superconducting conductor layer 130 is described super
Conductor layer 130 is led to be arranged side-by-side and surround multiple super outside the skeleton 110 including the length direction along the skeleton 110
Wire material；Insulating barrier 140, around the superconducting conductor layer 130；At least one superconducting shielding layer 180, the superconducting shielding layer
180 include being arranged side-by-side along the length direction of the skeleton 110 and surround multiple superconducting lines outside the insulating barrier 140
Material, the cooling end 200 is located at the outside of the core 100, possesses the refrigerant for cooling down the liquid refrigerants of the core 100
Stream, to cool down the core 100, the interior metal pipe 300 is located at the outside of the cooling end 200, the insulation part
400 are located at the outside of the interior metal pipe 300, are formed with the thermal insulation layer of multilayer-wound heat-barrier material 401, the vacuum
500 with the insulation part 400 outside the position that is separated by possess multiple separators 560, to be carried out very to the cooling end 200
Empty heat-insulated, the external metallization pipe 600 is located at the outside of the vacuum 500, and the sheath section 700 is located at the external metallization
The outside of pipe 600, forms restrictive coating.
Analysis constitutes each inscape of hyperconductive cable in turn below.The skeleton 110 is provided the superconducting line of prolate
Material is installed on the place around skeleton 110, while the framework played for forming shape is acted on, can turn into fault currents flow
Path.The skeleton 110 can have the shape that section is compressed into circle for circular multiple copper (Cu) bare wire 111.
Specifically, basic upper skeleton 110 plays the framework of the superconducting wire for arranging prolate in the drum of circle
Effect.When determining the diameter of the skeleton 110, it is considered to the width of superconducting wire, it is desirable to can prevent superconducting wire from swelling, and
It can be formed when superconducting wire is together arranged on skeleton 110 as far as possible close to circular structure.
As shown in Figure 1 and Figure 2, the skeleton is configured to the form that central part is full of, but the skeleton 110 can
To be configured to hollow cylindrical shape, internally moved for the framework effect for arranging superconducting wire and refrigerant to play simultaneously
Path effect, constituting each conductor bare wire 111 of skeleton can be made up of copper etc., can also be by each bare wire and each superconducting wire simultaneously
Connection connection, so as to which return conductors effect can be played during failure electric current in power system.
It can be determined according to the capacity of fault current under the conductor cross sectional area of the copper of composition bare wire etc., high-pressure situations, copper
Bare wire is configured to be compressed into the twisted wire form of circle.
Constituting the multi beam of the skeleton 110, there is the bare wire 111 of circular cross-section to be the twisted wire form for being compressed into circle, because
This, the surface of skeleton 110 is necessarily uneven.In order that the convex-concave surface of skeleton 110 is smoothened, can be in skeleton 110
Outside covering smooth layer 120.The smooth layer 120 can be using materials such as semiconduction carbon paper or brass bands.
Although not shown, but further bed course can be set between the smooth layer 120 and superconducting conductor layer 130.If
When putting the bed course, protection superconducting conductor layer is brought using semiconductive carbon paper.
At least one superconducting conductor layer being made up of superconducting wire can be set in the outside of the smooth layer 120.Constitute
The superconducting wire of the superconducting conductor layer of the present invention can use second generation superconducting wire.
The phenomenon for being changed into " 0 " in the following resistance of specified temp is referred to as superconducting phenomenon, not under absolute zero (- 273 DEG C)
But near 100K (- 173 DEG C), occur the phenomenon referred to as high-temperature superconductor of superconduction at a temperature of being relatively higher than absolute zero
(High Temperature Superconductor).High-temperature superconductor is used in superconducting wire used in power cable field
Body, the first generation wire rod having using BSCCO as main material of report and using YBCO or ReBCO as the coating conductor of main material
The second generation wire rod of (Coated Conductor, CC) type.
Recently using second generation superconducting wire the reasons why is that Ag is used as mother metal by first generation superconducting wire, and therefore, it is difficult to drop
The price of low superconducting wire, the A.C. losses characteristic of second generation superconducting wire is more outstanding, and first generation superconducting wire has filament
Structure and layer (Layer) shape architectural characteristic of second generation superconducting wire in terms of hysteresis loss more efficiently.
Second generation superconducting wire can be made up of Metal Substrate plate portion, buffer part, superconduction portion, protection portion etc..Metal Substrate plate portion
Basal component as wire rod, plays the effect for the mechanical strength for keeping superconducting wire, can use Hastelloy
(Hastelloy), the material such as nickel-tungsten (Ni-W).The buffer part can be played for superconducting layer to be deposited on metallic substrates
Buffer (buffer) effect.Superconducting layer electrical path as electric current when being powered, the material of protection portion can be by silver
(Ag) or copper (Cu) alloy-layer constitute.Silver-colored (Ag) alloy-layer is located between superconducting layer and copper (Cu) alloy-layer, so as to carry out
Evaporation, copper (Cu) alloy-layer can play the effect of enhancing mechanical strength.According to application apparatus, different-thickness and material may be constructed
Each alloy-layer.
The outside of the flat skeleton 110 is become by the smooth layer 120 using this second generation superconducting wire
Provided with the first superconducting conductor layer 130a, the first superconducting conductor layer 130a surrounded and shape by multiple superconducting wires 131
Into layer.First superconducting conductor layer 130a can be arranged to, make multiple superconducting wires adjacent side by side and surround the smooth layer
Around 120.
In addition, as shown in figure 1, according to the current capacity by hyperconductive cable transmission of electricity or distribution, multilayer can also be constituted and surpassed
Lead conductor layer 130.
Show possess two layers superconducting conductor layer 130a, 130b altogether in embodiment shown in Fig. 1.In addition, being merely laminated
When configuring superconducting conductor layer, due to the Kelvin effect of electric current, current capacity will not increase.The problem of in order to prevent such, work as tool
During standby multilayer superconducting conductor layer, insulating barrier 140 can be set between superconducting conductor layer 130a, 130b.The insulating barrier 140 can
In the form of being configured to insulating tape, and configure between superconducting conductor layer 130a, 130b of stacking, make superconducting conductor layer
130a, 130b are insulated from each other, so as to the Kelvin effect for the superconducting wire for preventing stacking.It is laminated by the insulating barrier 140
Energization direction for the superconducting conductor layer of multilayer can be consistent.
Shown in embodiment shown in Fig. 1 the superconducting conductor layer 130 by i.e. two layers first superconducting conductor layer 130a and
The example that second superconducting conductor layer 130b is constituted, but as needed, can also possess the more superconducting conductor layers of the number of plies.
Also, the superconducting wire for constituting each superconducting conductor layer 130a, 130b can be in parallel with constituting each bare wire of skeleton 110
Connection.This is naked for the current direction skeleton 110 that when occurring the accident such as destruction of superconduction condition, makes to flow to superconducting wire
Line.In order that preventing the resistance of superconducting wire from becoming big when being unsatisfactory for superconduction condition by such method and sending out superconducting wire
Heat or damage etc..
The outside for the second superconducting conductor layer 130b being arranged on the outside of the first superconducting conductor layer 130a can be provided with interior
Portion's semi-conductive layer 150.The internal semi-conductive layer 150 can for the different zones for alleviating superconducting conductor layer 130 electric field collection
In, make surface field uniform.Specifically, the internal semi-conductive layer 150 can occur in superconducting wire corner for alleviating
Partial electric field is concentrated, and makes Electric Field Distribution uniform.Outside semiconductive layer 170 described later is also identical in this.It can pass through
The mode of winding semi-conductive tape sets the internal semi-conductive layer 150.
The internal outside of semi-conductive layer 150 can be provided with insulating barrier 160.The insulating barrier 160 can be super for increase
The dielectric strength of cable.In order that high-voltage cable insulating, typically using XLPE (Cross Linking-Polyethylene：
Crosslinked polyethylene) or oil-filled mode (oil filled cable), but for the superconductivity of superconducting wire, hyperconductive cable is cold
But extremely low temperature, and under extremely low temperature XLPE it is damaged and the problem of there is insulation breakdown, oil-filled mode (oil filled
Cable) then can generation environment problem etc., therefore hyperconductive cable of the present invention the insulating paper of common papery can be used as it is exhausted
Edge layer 160, can constitute the insulating barrier 160 by way of winding multiple insulating paper.
The insulating paper mainly uses brown paper or PPLP (Polypropylene Laminated Paper：Polypropylene layer
Platen).Easiness and dielectric strength characteristic in view of winding, in a variety of paper insulation materials, hyperconductive cable uses PPLP
Insulating paper.
The outside of the insulating barrier 160 can be provided with external semi-conductive layer 170.The external semi-conductive layer can equally be used
Concentrated come the electric field for the different zones for alleviating superconducting conductor layer 130, make surface field uniform, and again may be by winding half
The mode of conductive strips sets the external semi-conductive layer 170.
Also, the outside of the external semi-conductive layer 170 can be provided with superconducting shielding layer 180.Form the superconducting shielding
The method of layer 180 can be identical with forming the method for the superconducting conductor layer 130.When the surface of the external semi-conductive layer 170
When uneven, smooth layer (not shown) can be arranged as required to, can be in the outside circumferentially square respectively of the smooth layer
To the superconducting wire being arranged side-by-side for forming superconducting shielding layer 180.
It is designed to that reaching about the electric current for circulating in the screen layer being made up of second generation superconducting wire flows through superconducting conductor
95% or so of the electric current of layer, so as to realize the minimum of leakage field.
The outside of the superconducting shielding layer 180 can be provided with the core exterior layer 190 for playing the outer packing of core 100 effect.Institute
Various bands or adhesive etc. can be included by stating core exterior layer 190, played exterior effect, core 100 is exposed to cooling described later
Layer, and the effect of all works of fastening core 100 is played, it can be made up of the metal tape of SUS materials etc..
The core 100 of hyperconductive cable can be made up of such method, although shown in Fig. 1 and Fig. 2 described flat
Slip layer and the semi-conductive layer are made up of the individual layer of identical material, but can set up a variety of subsidiary layers as needed.
The outside of the core 100 can be provided with cooling end 200.The cooling end 200 can be for the cooling core
100 superconducting wire, the inner side of the cooling end 200 can be provided with the circulation stream of liquid refrigerants.The liquid refrigerants can be with
Using liquid nitrogen, the liquid refrigerants (liquid nitrogen) is followed with the state for being cooled to subzero 200 degree or so temperature in the cooling flowing path
Ring, can keep the i.e. extremely low temperature of superconduction condition for the superconducting wire that the core inside cooling end possesses.
The cooling flowing path that the cooling end 200 possesses can be such that liquid refrigerants is flowed along a direction, superconduct
Reclaim and cool down again in terminal box of cable etc., in the cooling flowing path for being then re-supplied to the cooling end 200.
The outside of the cooling end 200 can be provided with interior metal pipe 300.The interior metal pipe 300 with it is described later outer
Portion's metal tube 600 together plays the exterior effect of hyperconductive cable, prevents the core in the laying of hyperconductive cable and handling process
The mechanical damage in portion 100.For easy to manufacture and carry, by hyperconductive cable on reel, when setting expansion wound on
Cable on reel is configured, and it is therefore possible to be continuously applied bending stress or tensile stress to hyperconductive cable.
In order to remain in that initial performance in the case where applying such mechanical stress, interior metal pipe can be set
300.Therefore, in order to strengthen the intensity of reply mechanical stress, the interior metal pipe 300 can have the length along hyperconductive cable
Degree direction repeats the ripple struction (corrugated) for swelling and being recessed, and the interior metal pipe 300 can be by the material such as aluminium or SUS
Material is constituted.
The inside of the interior metal pipe 300 is provided with the cooling flowing path that liquid refrigerants flows, therefore ought begin to cool down superconduction
During cable 1000, the interior metal pipe 300 being made up of metal material can together be cooled, and according to corresponding with temperature swollen
Swollen/shrinkage factor is shunk.
As the shrinkage phenomenon of the interior metal pipe 300 occurs for cooling hyperconductive cable, it is also possible to positioned at hyperconductive cable
Skeleton of 1000 central parts etc. occurs seriously.
Length direction of such shrinkage phenomenon along hyperconductive cable occurs, and to constituting superconducting power of the present invention
The terminal connection device or intermediate connection device of system apply convergent force.
It is, of course, preferable to the convergent force for putting on terminal connection device or intermediate connection device is interpreted as, precisely
Put on the convergent force sum of skeleton 110, interior metal pipe 300 and external metallization pipe 600.
Certainly, such shrinkage phenomenon is also possible to send out on the superconducting wire for constituting superconducting conductor layer or superconducting shielding layer
It is raw, but its volume or weight ratio shared in whole hyperconductive cable can be ignored.It will be related to the present invention described later
And hyperconductive cable laying method it is together aftermentioned.
The interior metal pipe 300 is located at the outside of the cooling end 200, therefore may be at and liquid refrigerant temperature pair
Under the extremely low temperature answered.It therefore, it can the interior metal pipe 300 dividing into low temperature portion metal tube.
In addition, the outer peripheral face of the interior metal pipe 300 can be provided with insulation part 400, the insulation part 400 includes heat-insulated
Layer, the high molecular heat-barrier material of relatively thin lower thermal conductivity is coated on high-reflectivity metal film and is formed described by multilayer-wound
Thermal insulation layer.The thermal insulation layer constitutes MLI (Multi Layer Insulation：Multilayer insulation), in particular for for every
Hot portion 400 is that boundary blocks the heat exchange based on radiation.
The outside of the insulation part 400 can be provided with vacuum 500.Need to prevent from being based on by the vacuum 500
Conduction or the heat exchange or heat intrusion of convection current.
Can be by forming insulating space in the outside of the insulation part 400 and carrying out evacuation to the insulating space
Method forms the vacuum 500.
The vacuum 500 is insulating space, for preventing the convection current from the outside of normal temperature towards the core side etc. from drawing
The heat intrusion risen, in order to form physical isolation space, can possess at least one separator 560.In order in the whole of hyperconductive cable
Individual region is prevented in the grade of external metallization pipe 600 and the vacuum 500 on the outside of the insulating space in the vacuum 500
The insulation part 400 of side is contacted, and at least one separator 560 can be set in the insulating space.
The separator 560 can be configured along the length direction of hyperconductive cable, can be wound into and institute is surrounded with spiral shape
The outside of core 100 is stated, specifically around the insulation part 400.
As shown in figure 1, can possess multiple separators 560, and can be according to the species or size of hyperconductive cable
To increase and decrease the quantity of the separator 560.The hyperconductive cable of the present invention can possess three to five separators.
The material of the separator 560 can be polyethylene (FEP, PFA, ETFE, PVC, P.E, PTFE) material.
In addition, as needed, the separator 560 can be by polyvinyl fluoride (PTFE, Poly Tetra Fluoro
Ethylene) material is constituted, or in rear surface coating polyvinyl fluoride being made up of general resin or polythene material etc..This
When, the polyvinyl fluoride can be polytetrafluoroethylene (PTFE).
Polytetrafluoroethylene (PTFE) (Teflon) is one kind of fluororesin, and highly stable change is formed by the strong chemical bond of fluorine and carbon
Compound, the spy such as chemical inertness, heat resistance, non-adhesive with almost Perfect, outstanding insulation stability, low-friction coefficient
Property.In addition, polytetrafluoroethylene (PTFE) has a certain degree of pliability, therefore, it is possible to surround the insulation part 400 with spiral shape, along
The length direction winding configuration of hyperconductive cable, and with a certain degree of rigidity, therefore, it is possible to as prevent insulation part 400 with
The isolated location that external metallization pipe 600 is contacted, the effect for constituting the insulating space of vacuum 500 is physically kept so as to play.
The diameter of the separator 560 can be 4mm to 8mm.
The outside for possessing the vacuum 500 of the separator 560 can be provided with external metallization pipe 600.Can be with phase
With shape and material constitute the external metallization pipe 600 and the interior metal pipe 300, the external metallization pipe 600 it is straight
Footpath is more than the interior metal pipe 300, so as to pass through the formation insulating space of separator 560.
Although the external metallization pipe 600 can be constituted with the identical shape of interior metal pipe 300 and material,
Even if being that refrigerant is circulated and begun to cool down in the cooling end 200, block and be based on also by the insulation part and vacuum
The heat transfer of radiation, conduction and convection current etc., therefore will not occur the shrinkage phenomenon as interior metal pipe 300.
Therefore, the influence that the cooling of hyperconductive cable is produced to the external metallization pipe 600 is little, therefore external metallization pipe
600 convergent force would not constitute the terminal connection device or intermediate connection of superconducting electric power system of the present invention to putting on
The convergent force of device produces big influence.
The outside of the external metallization pipe 600 can be provided with sheath section 700, and the sheath section 700 is played for protecting super
Exterior function inside cable.The sheath section can use the sheath material for the sheath section 700 for constituting general electric power cable
Material.The sheath material for constituting the sheath section 700 can be polyethylene (PE), polyvinyl chloride (PVC) etc..
As shown in Fig. 2 the vacuum 500 possesses three or four separators 560, so as to around positioned at described interior
Insulation part 400 outside portion's metal tube 300.
Fig. 3 is shown for the general of the hyperconductive cable laying method that illustrates to constitute superconducting electric power system 1 of the present invention
The concept map of thought.
Fig. 3 (a) shows that hyperconductive cable bends and formed in the horizontal plane the laying state of skew along horizontal direction
Under, the state of the skeleton 110 in skew interval, interior metal pipe 300 and external metallization pipe 600 before cable is cooled, Fig. 3
(b) show the hyperconductive cable of Fig. 3 (a) cooled down in the case of, skeleton 110, interior metal in skew interval
Section shape when pipe 300 and the contraction of external metallization pipe 600.
Fig. 3 (c) shows that the pendency that hyperconductive cable is bent along vertical direction is interval interior, before hyperconductive cable is cooled
The state of skeleton 110, interior metal pipe 300 and external metallization pipe 600, Fig. 3 (d) shows superconducting to Fig. 3 (c)
In the case that cable is cooled down, skeleton 110, interior metal pipe 300 and external metallization pipe 600 in the pendency interval shrink
When section shape.
As shown in Fig. 3 (a) and Fig. 3 (b), when cooling down hyperconductive cable, skeleton 110 is mainly made and interior by cooling
Portion's metal tube 300 shrinks, so that the center of skeleton 110 is subjected to displacement, displacement is equal to based on the diagonal of dx and dy distances
Line length d.After being subjected to displacement, convergent force, produced contraction are mainly produced on each skeleton 110 and interior metal pipe 300
Power can be absorbed, and uptake is directly proportional to the displacement equal to catercorner length d.But, for the water shown in Fig. 3 (b)
Square to skew etc. for warp architecture, it is possible to because of own wt in skeleton 110, interior metal pipe 300 and outside gold
Big frictional force is produced between category pipe 600, so as to reduce catercorner length d.
On the contrary, in the case of being bent along vertical direction shown in Fig. 3 (c) and Fig. 3 (d), (b) with Fig. 3
Shown situation is compared, and displacement dy is more than catercorner length d, therefore, it is possible to absorb and displacement dy (dy>D) receipts being directly proportional
Contracting power.
Experimentally, superconducting electric power system 1 of the present invention does not form water in the process of deployment of hyperconductive cable 1000
Square to skew, and it is downward with sinusoidal (SIN) function or cosine (COS) function curve shape in trigonometric function to form hyperconductive cable
The pendency of pendency is interval, so as to make skeleton 110, interior metal pipe 300 and external metallization pipe 600 when cooling down hyperconductive cable
Convergent force produced by shrinking is absorbed by the displacement of skeleton 110, interior metal pipe 300 and external metallization pipe 600, makes final
The convergent force of generation is significantly less than situation when straight line is laid.
Referring to Fig. 4 and Fig. 5, illustrate the laying method of the hyperconductive cable of superconducting electric power system 1 of the present invention.
Fig. 4 shows two examples of superconducting electric power system 1 of the present invention.Specifically, Fig. 4 (a) is shown
Hyperconductive cable only exists an interval superconducting electric power system 1 of the pendency being draped down, and Fig. 4 (b) shows that hyperconductive cable exists
There are two interval superconducting electric power systems 1 of the pendency being draped down in the position being separated by.
The present invention relates to a kind of superconducting electric power system 1, it possesses：Hyperconductive cable, including skeleton 110 positioned at central part,
The interior metal pipe 300 that is arranged on the outside of cooling flowing path and it is provided with the external metallization pipe 600 of vacuum in inner side；First wiring
Device 2000, it is connected with one end of the hyperconductive cable；Second termination 3000, its other end with the hyperconductive cable
Connection,
Connect first termination and the second termination hyperconductive cable possess be draped down to be formed to
A few pendency is interval.
Hyperconductive cable shown in Fig. 4 possesses skeleton 110, interior metal pipe 300 and external metallization pipe 600, can have
Predetermined diameter and length.
Hyperconductive cable can be connected to the terminal connection device drawn and be connected with power network under normal temperature, or every regulation
Distance carries out the intermediate connection device of wiring.
One end of hyperconductive cable and the first termination as terminal connection device are shown in embodiment shown in Fig. 4
2000 connections, the example of the second termination 3000 as intermediate connection device is provided with the other end.But, it is not limited to
This structure, it is thus understood that be the superconducting electric power system 1 for including hyperconductive cable.
Possesses a pendency interval S in embodiment shown in Fig. 4 (a).As previously described, the pendency interval S is super
Cable maximizes vertical displacement amount when cooled, so as to which produced convergent force is absorbed into a considerable part,
Therefore compared with the situation that straight line is laid, the size of the convergent force produced by can significantly reducing.
As Fig. 4 (b) shown in, it is contemplated that length of hyperconductive cable etc., such pendency interval S there may be two or
It is more, the multiple pendencys interval S being separated by can be formed, it would however also be possible to employ the method being formed continuously.
Each pendency interval S can be by setting supporting member 900, the area between being allowed on certain two point of hyperconductive cable
Between the method sagging because of the own wt of hyperconductive cable formed.
It is, therefore, understood that when the quantity increase for the interval S that dangles, the contraction produced by hyperconductive cable whole region
The absorptive capacity increase of power.
There is a pendency interval S in superconducting electric power system 1 shown in Fig. 4 (a), can be according to supporting member 900
Diameter etc. of interval and cable is determined equivalent to the overhang length P in pendency interval S cycles and equivalent to hyperconductive cable
The pendency height A of maximum sag of chain.
Also, as shown in Fig. 4 (b), when different pendency interval S overhang length is different, can have and be grown with pendency
Spend the pendency height being directly proportional.Within the scope of overall bending strength of hyperconductive cable etc. can be in necessarily, therefore can basis
The interval of supporting member 900 determines pendency interval S overhang length and pendency height.
Can by each pendency interval S be arranged to, when in the state of cable is put along horizontal direction by supporting structure
Part support phase every two at when, be recessed into sinusoidal (SIN) function or cosine (COS) function curve and connect adjacent peak
One cycle interval shape.
The described equivalent in the overhang length P in the interval cycle of dangling and pendency interval of pendency interval S surpasses
The maximum sag of chain of cable is that dangle height A relation can not be determined arbitrarily, it is necessary to meet the design standard of requirement, and right
There is sufficient convergent force to reduce effect in the deformation such as contraction.
Following table 1 is the pendency height A and overhang length P for changing the hyperconductive cable that diameter D is 15cm, investigation pendency
The form of length P/ pendency height A value.
Confirm that the condition of the data cell in addition to the data cell that overstriking is handled on form meets of the present invention
The design condition of superconducting electric power system and sufficient convergent force reduction condition.
It has been confirmed that superconducting electric power system of the present invention only the hyperconductive cable laid pendency height A and
When overhang length P relation is the scope of overhang length P/ pendency height A value satisfaction 16.0 to 27.5, setting for requirement is just met
Meter standard and sufficient convergent force acceptance condition.
Be formed as when by pendency interval, make overhang length P and pendency height A probably proportional, more specifically, working as
When overhang length P/ pendency height A value meets 16.0 to 27.5 scope, design condition and convergent force condition disclosure satisfy that.
Judge in addition, even if being only unilaterally to increase pendency interval S overhang length or pendency to absorb convergent force
During some in height, it is also possible to which occurring meeting allows the situation of convergent force condition.Experimentally, as pendency interval S
Overhang length increase when, pendency height be also required to together increase therewith, larger convergent force assimilation effect could be produced and expired
Foot allows convergent force condition.
Specifically, when the pendency height A and the diameter D of hyperconductive cable relation exceed 1.0<Height of dangling A/ is straight
Footpath D<During 2.0 scope, and the diameter D of the overhang length P and the cable exceeds 30<Overhang length P/ diameters D<40
Scope when, be equally judged as that the design condition of superconducting electric power system can not be met, or sufficient convergent force can not be obtained subtracting
The unpractical condition of small effect, therefore excluded from scope.
Table 1
[Table 1]
It is diameter D when the hyperconductive cable for meeting above-mentioned composition superconducting electric power system of the present invention, described outstanding
During the vertical height A and overhang length P three kinds of relations, the diameter D for being equally applicable to hyperconductive cable is less than or greater than 15cm
Situation.
It is interval with such condition formation pendency, and by sagging come shape in the vertical direction caused by own wt
Pendency interval S into vertical curve structure has a larger convergent force absorbability, thus can not by terminal connection device or
Person's intermediate connection device is configured to that conventional slidable active type.
For example, when terminal connection device permission convergent force be 5 tons or so, and straight line laying hyperconductive cable when produce 6
During the convergent force of ton, breakage in order to prevent terminal connection device etc. also used and constitutes slidable terminal connection device
Method, but it is in terms of the stability of system and not preferred, and the pendency interval of this vertical curve structure is arranged on superconduction
On cable, so that when absorbing 50% or so of the convergent force produced by shrinking, the convergent force for putting on terminal connection box can be about
It is decreased to 3 tons or so, effect is reduced by such convergent force, even if the terminal with 5 tons or so of permission convergent force is connect
When line box is configured to fixed, the stability of total system can also ensure that.It means that in addition to terminal connection device,
Also intermediate connection device can be configured to fixed.
Therefore, it is possible to the first termination 2000 and/or the by superconducting electric power system 1 of the present invention is constituted
Two terminations 3000 are configured to fixed.
And it is possible to the hyperconductive cable is configured to horizontal linear so that from first termination 2000
And second termination 3000 it is interval to the adjacent formation of supporting member 900 level.In embodiment shown in Fig. 4 (a),
Pendency interval S left and right sets two level intervals L1, L2, so as to be able to ensure that during the wiring of each termination super
The linear state of cable.In embodiment shown in Fig. 4 (b), three level intervals are set in pendency interval S1, S2 left and right
L1, L2, L3, so as to be able to ensure that the linear state of hyperconductive cable during the wiring of each termination.
It is interval in order to form the longer level of length in the longer region of hyperconductive cable in embodiment shown in Fig. 4, can be with
Using the method for densely configuring multiple supporting members 900.
Fig. 5 shows another example of superconducting electric power system 1 of the present invention.Different from the embodiment shown in Fig. 4,
In embodiment shown in Fig. 5, multiple pendencys interval S1, S2, S3 with identical overhang length P and pendency height A are each other
It is adjacent to continuous configuration.
The region shunk when hyperconductive cable is cooled and produce convergent force is not merely the specific region of cable, therefore
Pendency is formed on whole cable interval, and be laid to sinusoidal (sin) function of periodic function, cosine (cos) function curve shape, made
Overhang length P corresponding to the periodic function cycle and interval all identical in all pendencys corresponding to the pendency height A of amplitude, from
And can effectively distribute the convergent force uptake corresponding to amount of contraction.
Certainly, and multiple pendency intervals need not be continuously adjacent to, the pendencys that need not also make multiple pendencys interval
Length and pendency are highly identical, only need to meet above range.
Also, when the pendency interval is continuously adjacent to periodic function curve shape, in order to adjacent to each other
Ground continuously configures the individual pendency intervals of N (N is more than 2 natural number), can set the N+1 supporting members 900.Shown in Fig. 5
Embodiment in, it is interval provided with three pendencys, and hyperconductive cable is supported by four supporting members 900.
Fig. 6 shows the block diagram of hyperconductive cable laying method of the present invention.
The laying method of hyperconductive cable of the present invention, two wiring for hyperconductive cable to be connected to position fixation
On device and lay, the hyperconductive cable includes：Core, its skeleton 110 for including the copper product positioned at central part and superconduction
Conductor layer；Interior metal pipe 300, is provided with the cooling end for being used for cooling down the core on the inside of it；External metallization pipe 600, it is received
Receive the insulation part and vacuum for being arranged on the outside of the interior metal pipe 300, the laying method can include：Examination paving step
S100, the multiple pendencys being draped down with hyperconductive cable are interval adjacent and with overhang length and pendency height identical cycle letter
The mode of number curve shape is laid；Convergent force determination step S200, determines what is laid in the examination paving step S100
When hyperconductive cable carries out cooling down operation, skeleton 110, interior metal pipe 300 and each comfortable cable length side of external metallization pipe 600
Convergent force caused by upward expansion or shrinkage；Construction conditions determine step S300, it is considered in the convergent force determination step
The convergent force sum of the skeleton 110, interior metal pipe 300 and the external metallization pipe 600 that are determined in S200 and determine lay superconduction
The overhang length and pendency height in multiple pendencys interval during cable；Hyperconductive cable lays step S400, according in the paving
If the construction conditions laying hyperconductive cable determined in condition determination step S300.
For hyperconductive cable laying method of the present invention, hyperconductive cable is configured to cycle letter as shown in Figure 5
Illustrated in case of number curve shape, in order to illustrate.
In the process of deployment of hyperconductive cable, in order to more effectively absorb convergent force, it is necessary to consider the diameter of hyperconductive cable
Interval overhang length etc. with desired pendency.
Particularly, as previously described, length of the maximum allowable convergent force of termination etc. and hyperconductive cable etc. is being sentenced
It can turn into important judgment standard during disconnected construction conditions.
As construction conditions, according to the interval quantity of pendency, overhang length or pendency height, connection identical straight line away from
Length from required hyperconductive cable can be different, and when the length of the hyperconductive cable of high price is different, are wanting in cost away from change
Greatly, it is therefore important.
First, examination paving is carried out according to the overhang length of design hyperconductive cable or pendency height, determines convergent force to analyze
Construction conditions whether are met, therefore examination paving step S100, convergent force determination step S200 and construction conditions can be carried out successively
Determine step S300.
For hyperconductive cable, its diameter is different according to transmission line capability.Therefore, when entity hyperconductive cable laying away from
From it is longer when, it is interval to the setting experiment of corresponding hyperconductive cable in advance and carry out examination paving and laid with periodic function curve shape super
Cable, now needs to consider length of hyperconductive cable of permission convergent force or consuming etc., to determine optimal construction conditions.
For a diameter of D hyperconductive cable, the laying variable that can reflect in examination paving step S100 is that pendency is interval
Overhang length and pendency height.
Therefore, for the examination paving step S100 and convergent force determination step S200, thus it is possible to vary examination paving
The overhang length and pendency height of hyperconductive cable are repeated a number of times.
When changing experimental condition, when convergent force of correspondence each combination is determined with multiple combinations, contraction that can be to being surveyed
Make every effort to achieve and build database, therefore in the construction conditions determine step S300, can be in the convergent force determination step S200
The skeleton 110 of the hyperconductive cable of middle measure, the convergent force sum of interior metal pipe 300 and external metallization pipe 600 and
The length of the hyperconductive cable of laying, is carried out with maximum allowable convergent force and cost conditions (for example, length of hyperconductive cable etc.)
Compare, so that it is determined that.
At this time it is also possible to which construction conditions to be defined as to the overhang length in the pendency interval of periodic function curve shape and are hanged
Several combinations for height of hanging down or scope.
That is, unique overhang length and pendency height can not be determined in the construction conditions determine step S300
For construction conditions, and it is to determine the laying of the range format of admissible multiple construction conditions or overhang length or height of dangling
Condition.
As previously described, the construction conditions are determined in step S300, can be in the convergent force determination step S200
Skeleton, the convergent force sum of interior metal pipe and external metallization pipe and the superconduction of laying of the hyperconductive cable of middle measure
The length of cable is compared with maximum allowable convergent force and cost conditions, so that the overhang length P and described outstanding
Height of hanging down A relation meets 16<Overhang length P/ pendency height A<27.5 scope.
Now, the construction conditions determine that the overhang length P in the cycle interval equivalent to the pendency can be made in step
And the diameter D of hyperconductive cable relation meets 30<Overhang length P/ diameters D<40 scope, or the pendency height
The diameter D of A and hyperconductive cable relation meets 1.0<Dangle height A/ diameters D<2.0 scope.
In addition, when individual other experimental data with each skeleton, interior metal pipe and external metallization pipe etc., also may be used
To perform the examination paving step S100 and convergent force determination step S200 by computer simulation method.
Although being illustrated in this specification with reference to the preferred embodiments of the present invention, the common skill of the technical field
Art personnel can change and change in the range of without departing from the thought of the invention described in claims and field
Implement the present invention.Therefore, when the embodiment of deformation consists essentially of the inscape of the scope of the present invention, it should regard
To be all contained within the technology category of the present invention.
Claims (17)
1. a kind of superconducting electric power system, it is characterised in that including：
Hyperconductive cable, it includes the skeleton positioned at central part, the interior metal pipe that is arranged on the outside of cooling flowing path and in inner side
External metallization pipe provided with vacuum；
First termination, it is connected with one end of the hyperconductive cable；And
Second termination, it is connected with the other end of the hyperconductive cable,
Wherein, connect first termination and the hyperconductive cable of the second termination possesses at least one being draped down
Pendency is interval.
2. superconducting electric power system according to claim 1, it is characterised in that
The interval shape interval with the cycle that adjacent peak is connected in SIN function or cosine function curve of one pendency
Shape.
3. superconducting electric power system according to claim 2, it is characterised in that
Equivalent under the overhang length (P) in the cycle in the pendency interval and the maximum of the interior hyperconductive cable in pendency interval
Amount of hanging down i.e. pendency height (A) meets 16.0<Overhang length (P)/pendency height (A)<27.5 scope.
4. superconducting electric power system according to claim 3, it is characterised in that
The diameter (D) of the pendency height (A) and hyperconductive cable meets 1.0<Pendency height (A)/diameter (D)<2.0 model
Enclose.
5. superconducting electric power system according to claim 3, it is characterised in that
The diameter (D) of the overhang length (P) and hyperconductive cable meets 30<Overhang length (P)/diameter (D)<40 scope.
6. superconducting electric power system according to claim 1, it is characterised in that
Including at least two supporting members, the supporting member is arranged on the position being separated by, to support the hyperconductive cable, so that
Form the pendency interval.
7. superconducting electric power system according to claim 2, it is characterised in that
Be provided with N+1 supporting members so that it is interval continuously to configure N number of pendency adjacent to each other, wherein N be 2 with
On natural number.
8. superconducting electric power system according to claim 7, it is characterised in that
In N number of pendency is interval, the pendency height that the pendency of overhang length length is interval is more than the short pendency area of overhang length
Between pendency height.
9. superconducting electric power system according to claim 1, it is characterised in that
Some termination in first termination and second termination is configured to fixed.
10. superconducting electric power system according to claim 6, it is characterised in that
The hyperconductive cable is configured to horizontal linear so that from first termination and the second termination to
It is interval that adjacent supporting member forms level.
11. a kind of laying method of hyperconductive cable, for hyperconductive cable to be connected on two terminations of position fixation simultaneously
Laying, the hyperconductive cable includes：Core, it includes the skeleton and superconducting conductor layer of the copper product positioned at central part；It is internal
Metal tube, is provided with the cooling end for being used for cooling down the core on the inside of it；External metallization pipe, it, which is stored, is arranged on the internal gold
Belong to the insulation part and vacuum on the outside of pipe,
The laying method of the hyperconductive cable, it is characterised in that comprise the following steps：
Examination paving step, hyperconductive cable is laid to, and the multiple pendencys being draped down in hyperconductive cable are interval adjacent and with pendency
Length and pendency height identical periodic function curve shape；
Convergent force determination step, is determined when the hyperconductive cable laid carries out cooling down operation in the examination paving step, skeleton, interior
The convergent force caused by expansion or shrinkage on portion's metal tube and each comfortable cable length direction of external metallization pipe；
Construction conditions determine step, it is considered to skeleton, interior metal pipe and the outside determined in the convergent force determination step
The convergent force sum of metal tube, so that it is determined that the horizontal direction distance pendency length in multiple pendencys interval during laying hyperconductive cable
Degree and pendency height；And
Hyperconductive cable lays step, determines that the construction conditions determined in step lay hyperconductive cable according in the construction conditions.
12. the laying method of hyperconductive cable according to claim 10, it is characterised in that
The construction conditions are determined in step, skeleton to the hyperconductive cable that is determined in the convergent force determination step,
The length of the hyperconductive cable of the convergent force sum and laying of interior metal pipe and external metallization pipe, with maximum allowable convergent force
And cost conditions are compared, so that the overhang length and the pendency highly meet 16<Overhang length (P)/outstanding
Hang down highly (A)<27.5 scope.
13. the laying method of hyperconductive cable according to claim 12, it is characterised in that
The construction conditions are determined in step, make the overhang length (P) in the cycle interval equivalent to the pendency and described super
The relation of the diameter (D) of cable meets 30<Overhang length (P)/diameter (D)<40 scope.
14. the laying method of hyperconductive cable according to claim 12, it is characterised in that
The construction conditions are determined in step, meet the relation of the diameter (D) of the pendency height (A) and hyperconductive cable
1.0<Pendency height (A)/diameter (D)<2.0 scope.
15. the laying method of hyperconductive cable according to claim 11, it is characterised in that
The construction conditions determine to determine admissible multiple construction conditions in step.
16. the laying method of hyperconductive cable according to claim 11, it is characterised in that
Change the overhang length and pendency height of the hyperconductive cable of examination paving, to be repeated a number of times the examination paving step and institute
State convergent force determination step.
17. the laying method of hyperconductive cable according to claim 11, it is characterised in that
The examination paving step and the convergent force determination step are carried out by computer simulation method.
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| KR1020140139706A KR102272723B1 (en) | 2013-10-31 | 2014-10-16 | Superconducting power system and installing method of superconducting cable |
| KR10-2014-0139706 | 2014-10-16 | ||
| PCT/KR2015/003119 WO2016060343A1 (en) | 2014-10-16 | 2015-03-30 | Superconducting power system and method for installing superconducting cable |
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| US (1) | US9837808B2 (en) |
| EP (1) | EP3208903B1 (en) |
| KR (1) | KR102272723B1 (en) |
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| KR102351545B1 (en) * | 2015-07-16 | 2022-01-13 | 엘에스전선 주식회사 | Superconducting cable |
| CN109856571B (en) * | 2019-01-23 | 2024-03-22 | 深圳供电局有限公司 | Testing device for electromagnetic characteristics of through-current conductor of superconducting cable |
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| CN110752063A (en) * | 2018-07-24 | 2020-02-04 | 中国电力科学研究院有限公司 | High-temperature superconducting composite conductor containing inner and outer superconducting layers |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150051141A (en) | 2015-05-11 |
| EP3208903B1 (en) | 2021-10-27 |
| EP3208903A4 (en) | 2018-06-20 |
| KR102272723B1 (en) | 2021-07-06 |
| CN107078496B (en) | 2019-01-29 |
| US20160336096A1 (en) | 2016-11-17 |
| EP3208903A1 (en) | 2017-08-23 |
| WO2016060343A1 (en) | 2016-04-21 |
| US9837808B2 (en) | 2017-12-05 |
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